SUBLITTORAL EPIFAUNAL COMMUNITIES AT SIGNY ISLAND, ANTARCTICA .1. THE ICE FOOT ZONE

被引:39
作者
BARNES, DKA
机构
[1] British Antarctic Survey, Cambridge, CB3 OET, High Cross, Madingley Road
关键词
D O I
10.1007/BF00349466
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Photographs were taken every 0.5 m along three transects of 5.5 m length on shallow rock faces at Signy Island, Antarctica, during the austral summer of 1991/1992. The percentage cover of substratum ranged from 0 to 100% and the colonising communities included representatives of ten phyla. The zone from mean low-water neap level to 1.5 m depth was mostly devoid of organisms as a result of the seasonal formation of the encrusting ice foot. Coralline and macroalgae dominated from 2 to 3 m, and animal groups from 3.5 to 5.5 m. Bryozoans, and to a lesser extent sponges, were the most abundant animal phyla. Within the bryozoans a succession of colonisation of different species was observed, the most abundant two of which occupied >80% of substratum in places. Substratum type seemed to be the main factor influencing community development in the shallow sublittoral at Signy Island, although ice impact prevents community development in the top 1.5 m and limits it over the rest of the transect down to 5.5 m. Depth and profile of substratum also influenced communities within this depth range (particularly taxonomic composition).
引用
收藏
页码:555 / 563
页数:9
相关论文
共 67 条
[1]  
[Anonymous], 1989, ORIGINS EVOLUTION AN
[2]  
ARNAUD PM, 1992, ACTAS SEMINARIO INT, P341
[3]  
ARNTZ WE, 1994, IN PRESS OCEANOGR MA
[4]   THE ROLE OF BIOLOGICAL DISTURBANCE IN TEMPERATE SUBTIDAL ENCRUSTING COMMUNITIES [J].
AYLING, AM .
ECOLOGY, 1981, 62 (03) :830-847
[5]   SUBLITTORAL EPIFAUNAL COMMUNITIES AT SIGNY ISLAND, ANTARCTICA .2. BELOW THE ICE-FOOT ZONE [J].
BARNES, DKA .
MARINE BIOLOGY, 1995, 121 (03) :565-572
[6]   SEASONAL-VARIATION IN THE FEEDING-ACTIVITY OF 4 SPECIES OF ANTARCTIC BRYOZOAN IN RELATION TO ENVIRONMENTAL-FACTORS [J].
BARNES, DKA ;
CLARKE, A .
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 1994, 181 (01) :117-133
[8]   POPULATION-DYNAMICS OF MARINE BENTHIC INVERTEBRATES IN ANTARCTIC AND SUB-ANTARCTIC ENVIRONMENTS - ARE THERE UNIQUE ADAPTATIONS [J].
BREY, T ;
CLARKE, A .
ANTARCTIC SCIENCE, 1993, 5 (03) :253-266
[9]  
Bullivant J. S., 1961, Polar Record, V10, P505
[10]  
Bullivant J. S., 1967, NZ DEP SCI IND RES B, V176, P1